20062222021 has 4 divisors (see below), whose sum is σ = 20062505344. Its totient is φ = 20061938700.

The previous prime is 20062222009. The next prime is 20062222039. The reversal of 20062222021 is 12022226002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20062222021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20062222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20062222321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67276 + ... + 211306.

It is an arithmetic number, because the mean of its divisors is an integer number (5015626336).

Almost surely, 2^20062222021 is an apocalyptic number.

It is an amenable number.

20062222021 is a deficient number, since it is larger than the sum of its proper divisors (283323).

20062222021 is a wasteful number, since it uses less digits than its factorization.

20062222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283322.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20062222021 its reverse (12022226002), we get a palindrome (32084448023).

The spelling of 20062222021 in words is "twenty billion, sixty-two million, two hundred twenty-two thousand, twenty-one".